be a district attorney on the case for over two decades the top prosecutor in new york city was charles hynes in two thousand and thirteen after repeated allegations of prosecutorial misconduct under his watch hines found himself in the tough his reelection campaign of his twenty three years on the job. i think the president has the greatest power of anybody in our society. he has a powerful life and death and the president who doesn't have integrity the prosecutor is going to seek convictions for the sake of convictions when the prosecutor is dangerous we investigate two stories of men trying to clear their names of murder both with cases that are tainted with alleged police and prosecutorial misconduct. tyrone johnson and derek hamilton one working from inside prison the other working from the outside. so we're headed out to new haven connecticut where we're going to meet derek hamilton derek was accused of a murder in brooklyn in one thousand nine hundred one problem is he claims he was in new haven at the time and yet he spent twenty one years in prison for a crime he claims he didn't com